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Subject[PATCH AUTOSEL 5.6 37/41] riscv: pgtable: Fix __kernel_map_pages build error if NOMMU
Date
From: Kefeng Wang <wangkefeng.wang@huawei.com>

[ Upstream commit 9a6630aef93394ac54494c7e273e9bc026509375 ]

riscv64-none-linux-gnu-ld: mm/page_alloc.o: in function `.L0 ':
page_alloc.c:(.text+0xd34): undefined reference to `__kernel_map_pages'
riscv64-none-linux-gnu-ld: page_alloc.c:(.text+0x104a): undefined reference to `__kernel_map_pages'
riscv64-none-linux-gnu-ld: mm/page_alloc.o: in function `__pageblock_pfn_to_page':
page_alloc.c:(.text+0x145e): undefined reference to `__kernel_map_pages'

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/riscv/include/asm/pgtable.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 05b92987f500..31d912944d8d 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -467,6 +467,8 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma,

#define TASK_SIZE 0xffffffffUL

+static inline void __kernel_map_pages(struct page *page, int numpages, int enable) {}
+
#endif /* !CONFIG_MMU */

#define kern_addr_valid(addr) (1) /* FIXME */
--
2.25.1
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